ASTROSAT CZTI

Data Quality Report

Orbit 28802

Creation date: 2024-06-27T19:56:31.379932
Switch to: Orbit-wise | Merged OBSID-wise
web.py, SVN revision $Rev$

Source files: Data quality report (detailed, human readable) | Data quality report (concise, machine readable)

Observation information


Basic statistics of files

Param Original file Final file
FilenamemodeM0/AS1A10_103T01_9000004132_28802cztM0_level2.evt modeM0/AS1A10_103T01_9000004132_28802cztM0_level2_quad_clean.evt
Size (bytes)564,474,240104,973,120
Size538.3 MB 100.1 MB
Events in quadrant A3,173,708695,793
Events in quadrant B3,258,860721,852
Events in quadrant C3,396,488684,101
Events in quadrant D6,825,295623,696

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0136442
B0138732
C0141082
D0247972

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0180
B0190
C0190
D0190

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6511300.460759%
B6511470.721855%
C65111221.873752%
D651179212.164030%

Noise dominated fraction

Noise dominated data is calculated using 1-second bins in cleaned event files. If a bin has >2000 counts, and if more than 50% of those come from <1% of pixels, then it is considered to be noise-dominated and hence unusable.

Quadrant # 1 sec bins Bins with >0 counts Bins with >2000 counts High rate bins dominated by noise Noise dominated (total time) Noise dominated (detector-on time) Marked lightcurve
A 7621 6511 0 0 0.00% 0.00%
B 7621 6511 1 1 0.01% 0.02%
C 7621 6511 0 0 0.00% 0.00%
D 7621 6511 725 725 9.51% 11.14%

Top noisy pixels

Top three noisy pixels from each quadrant. If the there are fewer than three noisy pixels in the level2.evt file, extra rows are filled as -1

Pixel properties Quadrant properties
Quadrant DetID PixID Counts Sigma Mean Median Sigma
A 14 239 18719 110.96 807 792 161.6
A 15 174 18187 107.66 807 792 161.6
A 13 254 12374 71.69 807 792 161.6
B 5 255 26564 167.78 812 792 153.6
B 12 111 18791 117.18 812 792 153.6
B 11 111 16972 105.33 812 792 153.6
C 14 238 157993 860.2 783 790 182.8
C 3 233 91516 496.44 783 790 182.8
C 14 254 48620 261.72 783 790 182.8
D 1 52 1853262 10423.8 742 722 177.7
D 8 195 1087200 6113.35 742 722 177.7
D 12 233 993709 5587.3 742 722 177.7

Detector plane histogram (DPH)

Histogram calculated using DETX and DETY for each event in the final _common_clean file

Quadrant A Quadrant B
Quadrant D Quadrant C

Count rate plots and images

Plot type Count rate plots Images
Comparison with Poisson distribution
Blue bars denote a histogram of data divided into 1 sec bins.
Red curve is a Poisson curve with rate = median count rate of data.
Quadrant-wise count rates
Data is divided into 100 sec bins
Module-wise count rates for Quadrant A
Data is divided into 100 sec bins
Module-wise count rates for Quadrant B
Data is divided into 100 sec bins
Module-wise count rates for Quadrant C
Data is divided into 100 sec bins
Module-wise count rates for Quadrant D
Data is divided into 100 sec bins

Housekeeping plots

Parameter Plot
CZT HV Monitor
D_VDD
Temperature 1
Veto HV Monitor
Veto LLD
Alpha Counter
_CPM_Rate
CZT Counter
+2.5 Volts monitor
+5 Volts monitor
_ROLL_ROT
_Roll_DEC
_Roll_RA
Veto Counter